Mitutoyo Dro On Bridgeport Mill

[Jeep1]

I have an older Bridgeport mill with a Mitutoyo DRO. The DRO quit working. There is a series of lights that go on across the top of the front face of the unit when turned on. The lights did go on and then went dark. I checked the fuses and connections and they are good. There is power going to the DRO. The unit is model # GML-3705W, code #164-366. Any suggestions on what to look for? Does anyone repair these older units?
Thank you.

 

[kd4gij]

My best guess is if you did find some one that works on them the cost would be prohibitive. for an older unit. If it where me I would take the cover off and unplug and re plugin all of the connections.

 

[Holescreek]

Look inside for a DC power supply or transformer and check it's output. You can't hurt it at this point.

 

[middle.road]

Welcome to the wonderful world of Mitutoyo DROs.
Awhile back, I was trying to track down a manual for the 3705, even contacted Mitutoyo in Aurora, No Luck.

 

[Jeep1]

Thanks for the replies. It appears there is a problem in one of the boards. Any suggestions on a new DRO? Acu-Rite, Fagor, Newall, etc.